查询词典 loop

The body of the loop is indented : indentation is Python's way of grouping statements.

循环 体是缩进的：缩进是Python的语法分组方式。

Moreover,this research may be used to solve sintering terminal loop control and predict quality indicatrix relating to color and grain.

该方法还可用于解决烧结终点的闭环控制，以及与纹理和颜色相关的质量指标的预报。

The oxygen life indictor is an open-loop system made up of the step motor with a photoelectric switch .

仿真氧气生命指示器采用步进电机驱动和光电开关定位开环控制系统，在设计和实现中成功地解决了指示器盘面刻度非均匀的问题，并解决了光电开关确定零位问题和限位问题。

The voltage induced in series with the loop is proportional to the area and the cosine of its angle to the field.

回路感生电压的大小与回路面积以及回路与磁场方向夹角的余弦成正比。

It is shown that what affect the amplitude of pre-pulse voltage are the grounding inductance and the frequency of the charging loop circuit, which is determined by the secondary coil inductance of transformer and the capacitance of PFL.

研究表明由变压器副边电感和脉冲形成线电容构成的回路充电频率和接地电感的大小是影响预脉冲电压幅值的主要因素。

To deal with the second type of variable speed system, a method which combines sliding mode decoupling control theory and Phase-Locked Loop technique is firstly applied to the induction motor's variable speed control.

针对第二类系统，本论文首次提出了将滑动模解耦控制理论与锁相环技术相结合的方案，应用于感应电机的调速控制系统。

ABSTRACT Aiming at problems of trans-vector controller in a vehicle-carried induction motor such as variable rotor and stator resistance following motor temperature, and their inductance varying with flux saturation degrees. Firstly, CSI and VSI are introduced, for CSI, it can hold the advantages both FOC and DTC using stator flux directional, PI parameter and simulation are also introduced. Secondly, equations of IM in the synchronous rotary frame and its static counterpart, as figuring in the saturation condition of magnetic field, are dealt in this paper and the simulation results are presented. Thereafter, the parameter designing of PI trans-vector controller is processed, which features the non-linear model. In practical realization, as neglecting the dynamical change of motor inductance, this paper employs online modification of inductance parameters, according to the flux saturation, then transforms the non-linear equations into linear ones, and so compacts the structure of controller. Thirdly, in view of the maximum torque output is extraordinary requisite when Electrical Vehicle start up, accelerate, and overtake, this paper issues the maximum torque when both inverter and battery capacity is corporeally definite. Fourthly, on-line differentiating and analyzing both rotor's time constants and its flux by using the expanding order reduction and discrete Kalman filter equation are fathomed, in order to realize high-performance trans-vector algorithm, and also the simulation results are presented. Fifthly, the close-loop regenerative brake system, when the EV's torque is set constant, is deduced; at the same time, unification of electric drive model and brake model is executed. Combined with maximum charge current demands, the mathematical model for online yielding torque as a demand.

本论文针对车载异步电机在矢量控制器所遇到的问题：定转子电阻随温度变化及随电机饱和程度变化的转子电感及定子电感而影响电机调速性能提出一套完整的解决方案：分析了电流型逆变器和电压型逆变器在实现矢量控制时控制器参数的计算，分析出对于电流型逆变器在采用定子磁场定向时，其性能同时具有矢量控制和直接转矩控制两者的优势，并对电压型逆变器在转子磁场定向下的模型进行了仿真研究；建立异步电机非线性模型，推导出考虑磁饱和时异步电机在同步旋转坐标系及静止坐标系下的方程，并做出了仿真结果，建立异步电机在非线性模型下的矢量控制调节器的PI参数设计，在实际应用中，若忽略电机电感的动态变化，可以根据当前的磁路饱和状态而在线修正电感参数，从而将非线性方程线性化，降低控制器的复杂度；考虑到电动汽车在起动和加速超车时需要电机有最大转矩输出，本文讨论在逆变器容量一定和电池供电能力有限的情况下电机最大转矩输出问题；推导了异步电机扩展降阶、离散卡尔曼滤波方程在线辨识转子时间常数和转子磁通，用于实现高性能的矢量控制算法，并给出了仿真结果；推导出了电动汽车恒转矩给定的闭环回馈制动系统，实现了电动控制模型和制动模型的统一，而且结合铅酸电池最大充电电流的要求，为制动转矩在线给定建立了数学模型；设计了基于双DSP系统的高性能矢量控制器软硬件框图，并以大量实验数据说明矢量控制在电动汽车应用的实际应用状况。

Some specific topics are: front end of PORT, solve call relationship, interprocedural analysis, global constant propagation, induction variable substitution, data dependence analysis,alias processing, De loop translations and parallel code generation.

关键词并行编译，PORT系统，全局流分析，数据依赖测试，循环变换PORT：ASETOFPARALLELIZ

Experiment results indicate that inductor current feedback based dual-loop control method is feasible.

通过实验结果进一步表明，基于电流内环的双环控制方法是可行的。

Studies of the resource allocation game with inelastic users in open-loop control are also given.

研究了无线网络中的功率分配博弈，证明了干扰的外部效应使得无线网络功率控制的效率变低。

Many will continue to choose to live in duality and in conflict.

许多人将继续选择活在二元对立性和冲突中。

I find that students of the University of Physical Education all wear sportswear at first sight.

我发现：体育大学的学生乍一看，都是穿运动衣，大家都一样